Requirement Details
Electron Ion Collider
F-HSR-VAC-BS.8
Requirement details, history, relationships and interfaces associated with requirement F-HSR-VAC-BS.8
CURRENT RECORD- ARCHIVE RECORDS
- RELATIONSHIPS
- INTERFACES
| Record Date: 12/06/2024 11:10 | |||
| Identifier: | F-HSR-VAC-BS.8 | WBS: | 6.05 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | In Process | |
| Description: | Beam screens shall be designed to fit into the cold beam pipe of the HSR arc magnets. | ||
| Comments: | |||
No archive versions
| Parents | |
| G-HSR.22 | The HSR shall have a cryogenic system to cool and operate all elements which need cryogenic cooling and will, where possible utlise the existing RHIC cooling system. |
| Children | |
| P-HSR-VAC-ARC.3 | The Siberian snakes shall be equipped with new beam tubes. |
| P-HSR-VAC-ARC.4 | The new Siberian Snake beam tubes shall be Cu / aC coated. |
| P-HSR-VAC-SCREENS.1 | The inner layer of copper shall have a RRR>50 after installation. |
| P-HSR-VAC-SCREENS.2 | An amorphous Carbon coating shall be provided on the innermost surface of the beam screen to maintain electron secondary emission yield (SEY) below TBD at the arc CQS (after conditioning). [5.9] |
| P-HSR-VAC-SCREENS.3 | An AC coating shall be provided on the innermost surface of the beam screen to maintain a electron secondary emission yield (SEY) below TBD at the Arc dipoles. |
| P-HSR-VAC-SCREENS.6 | The arc and insertion region beam screens will be designed to fit through a 68mm aperture. 68 mm |
| P-HSR-VAC-SCREENS.7 | The vertical beam aperture for the arc section beam screens shall be 47.4 mm. 47.4 mm |
| P-HSR-VAC-SCREENS.8 | The horizontal beam aperture for the arc section beam screens shall be 62.4 mm. 62.4 mm |
| P-HSR-VAC-SCREENS.9 | The center shift of the horizontal beam screen aperture shall not exceed 2.5 mm when installed in to the dipole due to the magnet sagitta. |
| P-HSR-VAC-SCREENS.10 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
| P-HSR-VAC-SCREENS.11 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
| P-HSR-VAC-SCREENS.12 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
| P-HSR-VAC-SCREENS.13 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
| P-HSR-VAC-SCREENS.14 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
| P-HSR-VAC-SCREENS.15 | No more than 2 mm of stainless steel shall be exposed to the beam in order to accomodate the longitudinal weld seam. |
This function not yet implemented.